Ornamental chain



FIG. 1 is a front elevational view of an ornamental chain showing my new design, the opposite side being identical;

FIG. 2 is a side elevational view, the opposite side being identical; and,

FIG. 3 is an enlarged cross sectional view taken along lines 3--3 of FIG. 1. 

The ornamental design for an ornamental chain, as shown and described. 